Power transfer switch



FIG. 1 is front perspective view of a power transfer switch illustrating our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is bottom view thereof; and,

FIG. 8 is a right perspective view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design. 

CLAIM The ornamental design for a power transfer switch, as shown and described. 